US2822194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure expansion joint with bellows and reinforcing rings and method of making same
Assignee: Flexonics Corp
•
Filing: 1951-08-13
•
Granted: 1958-02-04
•
Expires: 1971-08-13
Abstract
No abstract record available.
Inventors
- 👤 Fentress David Wendell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:59
CPC Classifications
F; F16; F16L; F16L51/00; F16L51/02; F16L51/025; F16L51/028; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T29/49826; Y10T29/49877
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |